<s>
Google	B-Application
Safe	I-Application
Browsing	I-Application
is	O
a	O
service	O
from	O
Google	B-Application
that	O
warns	O
users	O
when	O
they	O
attempt	O
to	O
navigate	O
to	O
a	O
dangerous	O
website	O
or	O
download	O
dangerous	O
files	O
.	O
</s>
<s>
This	O
protection	O
works	O
across	O
Google	B-Application
products	O
and	O
is	O
claimed	O
to	O
“	O
power	O
safer	O
browsing	O
experiences	O
across	O
the	O
Internet	O
”	O
.	O
</s>
<s>
Browsers	B-Application
like	O
Google	B-Application
Chrome	I-Application
,	O
Safari	B-Application
,	O
Firefox	B-Application
,	O
Vivaldi	B-Language
,	O
Brave	B-Application
and	O
GNOME	B-Language
Web	I-Language
use	O
these	O
lists	O
from	O
Google	B-Application
Safe	I-Application
Browsing	I-Application
to	O
check	O
pages	O
against	O
potential	O
threats	O
.	O
</s>
<s>
Google	B-Application
also	O
provides	O
a	O
public	O
API	O
for	O
the	O
service	O
.	O
</s>
<s>
Google	B-Application
provides	O
information	O
to	O
Internet	O
service	O
providers	O
,	O
by	O
sending	O
email	O
alerts	O
to	O
autonomous	B-Architecture
system	I-Architecture
operators	O
regarding	O
threats	O
hosted	O
on	O
their	O
networks	O
.	O
</s>
<s>
Web	B-Application
browsers	I-Application
:	O
Google	B-Application
Chrome	I-Application
,	O
Safari	B-Application
,	O
Firefox	B-Application
,	O
Vivaldi	B-Language
,	O
Brave	B-Application
and	O
GNOME	B-Language
Web	I-Language
.	O
</s>
<s>
Google	B-Application
maintains	O
the	O
Safe	O
Browsing	O
Lookup	O
API	O
,	O
which	O
has	O
a	O
privacy	O
drawback	O
:	O
"	O
The	O
URLs	O
to	O
be	O
looked	O
up	O
are	O
not	O
hashed	O
so	O
the	O
server	O
knows	O
which	O
URLs	O
the	O
API	O
users	O
have	O
looked	O
up	O
"	O
.	O
</s>
<s>
The	O
Chrome	B-Application
,	O
Firefox	B-Application
and	O
Safari	B-Application
browsers	I-Application
use	O
the	O
latter	O
.	O
</s>
<s>
Safe	O
Browsing	O
also	O
stores	O
a	O
mandatory	O
preferences	B-Application
cookie	I-Application
on	O
the	O
computer	O
.	O
</s>
<s>
Google	B-Application
Safe	I-Application
Browsing	I-Application
"	O
conducts	O
client-side	O
checks	O
.	O
</s>
<s>
If	O
a	O
website	O
looks	O
suspicious	O
,	O
it	O
sends	O
a	O
subset	O
of	O
likely	O
phishing	O
and	O
social	O
engineering	O
terms	O
found	O
on	O
the	O
page	O
to	O
Google	B-Application
to	O
obtain	O
additional	O
information	O
available	O
from	O
Google	B-Application
's	I-Application
servers	O
on	O
whether	O
the	O
website	O
should	O
be	O
considered	O
malicious	O
"	O
.	O
</s>
<s>
Logs	O
,	O
which	O
include	O
an	O
IP	O
address	O
and	O
one	O
or	O
more	O
cookies	B-Application
,	O
are	O
kept	O
for	O
two	O
weeks	O
and	O
are	O
tied	O
to	O
the	O
other	O
Safe	O
Browsing	O
requests	O
made	O
from	O
the	O
same	O
device	O
.	O
</s>
<s>
In	O
most	O
applications	O
,	O
excluding	O
Apple	B-Application
's	I-Application
Safari	I-Application
in	O
which	O
Apple	O
uses	O
a	O
proxy	O
system	O
,	O
the	O
API	O
is	O
installed	O
in	O
a	O
way	O
that	O
allows	O
Google	B-Application
to	O
continuously	O
get	O
the	O
actual	O
IP	O
address	O
of	O
the	O
user	O
.	O
</s>
<s>
This	O
enables	O
Google	B-Application
to	O
track	O
users	O
as	O
they	O
navigate	O
the	O
internet	O
,	O
send	O
emails	O
to	O
Gmail	B-Application
accounts	O
,	O
or	O
use	O
Google	B-Application
services	O
.	O
</s>
<s>
Websites	O
not	O
containing	O
malware	O
have	O
been	O
blacklisted	O
by	O
Google	B-Application
Safe	I-Application
Browsing	I-Application
due	O
to	O
the	O
presence	O
of	O
infected	O
ads	O
.	O
</s>
<s>
Requesting	O
removal	O
from	O
the	O
blacklist	O
requires	O
the	O
webmaster	O
to	O
create	O
a	O
Google	B-Application
Webmaster	O
's	O
Tool	O
account	O
and	O
wait	O
several	O
days	O
for	O
the	O
removal	O
from	O
the	O
blacklist	O
.	O
</s>
<s>
There	O
have	O
also	O
been	O
concerns	O
that	O
Google	B-Application
Safe	I-Application
Browsing	I-Application
could	O
be	O
used	O
for	O
censorship	O
in	O
the	O
future	O
,	O
however	O
this	O
has	O
not	O
yet	O
happened	O
.	O
</s>
